2007 Audi A6 vs. 2009 Audi A8
To start off, 2009 Audi A8 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi A6. In addition, the cost of maintenance, including insurance, on 2007 Audi A6 would be higher. At 5,204 cc (10 cylinders), 2009 Audi A8 is equipped with a bigger engine. In terms of performance, 2009 Audi A8 (444 HP @ 7000 RPM) has 102 more horse power than 2007 Audi A6. (342 HP @ 6500 RPM) In normal driving conditions, 2009 Audi A8 should accelerate faster than 2007 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A8 weights approximately 400 kg more than 2007 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2009 Audi A8 (540 Nm @ 3500 RPM) has 297 more torque (in Nm) than 2007 Audi A6. (243 Nm @ 3250 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A6.
Compare all specifications:
| 2007 Audi A6 | 2009 Audi A8 | |
| Make | Audi | Audi |
| Model | A6 | A8 |
| Year Released | 2007 | 2009 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3128 cc | 5204 cc |
| Engine Cylinders | 6 cylinders | 10 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 342 HP | 444 HP |
| Engine RPM | 6500 RPM | 7000 RPM |
| Torque | 243 Nm | 540 Nm |
| Torque RPM | 3250 RPM | 3500 RPM |
| Engine Bore Size | 84.6 mm | 84.5 mm |
| Engine Stroke Size | 92.7 mm | 92.8 mm |
| Engine Compression Ratio | 12.5:1 | 12.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 209 km/hour | 250 km/hour |
| Acceleration 0-100mph | 7.3 seconds | 5.1 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1540 kg | 1940 kg |
| Vehicle Length | 4920 mm | 5070 mm |
| Vehicle Width | 1470 mm | 1900 mm |
| Vehicle Height | 1860 mm | 1430 mm |
| Wheelbase Size | 2850 mm | 2950 mm |
| Fuel Consumption | 8.9 L/100km | 12.4 L/100km |
| Fuel Consumption City | 15.7 L/100km | 18.2 L/100km |
| Fuel Consumption Overall | 15.5 L/100km | 15.8 L/100km |
| Fuel Tank Capacity | 70 L | 90 L |
